Improvement in lanterns



J. H; IRWIN.

Lantern.

Patented Nov. 17. 1863.

UNITED STATES PATENT OFFICE.

JOHN H. IRWIN, OF CHICAGO, ILLINOIS, ASSIGNOR T0 HIMSELF AND JAS. F. GRIFFEN, OF SAME PLACE.

IMPROVEMENT IN LANTERNS.

Specification forming part of Letters Patent No. 40,624, dated November I7, 1863.

To all whom it may concern:

Be it known that I, JOHN H. IRWIN, of Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Lanterns; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings and the letters and figures marked thereon, which form part of this specification.

In said drawings, Figure 1 represents a vertical central section of my improved lantern, and Fig. 2 isv a perspective view showing a portion of the exterior casing of the same.

The nature of my invention consists in a novel device whereby the wick of lanternlamp may be regulated or adjusted at the proper height to afl'ord the best light from the outside of the lantern and without removing the lamp from the lantern, which cannot be done in the wind, as the light would thereby he innnediately extinguished.

To enable those skilled in the art to understand how to construct and use my invention, I will proceed to describe the same with particularity.

A represents the oil cup of thelantern', provided with the wicletuhea; and B represents the casing of the lantern.v E representing the glass globe or protector, and F the wire guards inclosing the globe.

e e representairpassages passing up through the bottom of the lantern, and deflected at the upper ends so as to direct the air into the flame when the lantern is moved downward, as shown by the red arrows.

I) I) represent holes through the casing, through which the air is also admitted to support the frame.

D represents a circular aperture cut in one side of the lantern-casing, and O is a button fixed upon the end of the rod d. This button extends through the said aperture and projects outside far enough to be readily grasped and turned by the hand, and is provided with the flange c, which rests against the interior surface of the casing, and thereby effectually prevents the admission of the wind through the said aperture, which without this preventive would extinguish the lamp. The rod 01 is provided with a ratchet or burr wheel, which rests against the wick, so that by turning the button 0 with the thumb and finger the rod d and ratchet-wheel d is revolved and the wick properly adjusted as desired.

In putting the lamp into the lantern, care must be taken to have the rod cl extend in a line with the circular aperture D in the easing, so that when the lamp is properly adjustedand secured in the lantern the button 0 will project through said aperture, and in putting in the lamp as aforesaid it should be tipped or slightly inclined from the said opening until the button passes up to said aperture, when the lamp may take an upright position in the lantern.

It will be seen that in the drawings the button O substantially'fills up the aperture D, so as to prevent the extinguishment of the flame without the use of the flange c, and when the flange c is used upon the shaft d the button ,0 is not necessary, as any suitable means whereby the rod may be turned from the outside could then be used with the same result.

I claim as my invention 1. The combination and arrangement of the button 0 and rod d with the circular aperture D, operating in the manner substantially as described.

2. Providing the rod 01 with the flange 0, when arranged with respect to the casing B and aperture D, in the manner herein shown and described.

JOHN H. IRWIN.

Witnesses.

W. E. MARKS, J. L. CoBURN. 

